2281307500 has 30 divisors (see below), whose sum is σ = 4988768708. Its totient is φ = 912522000.

The previous prime is 2281307473. The next prime is 2281307507. The reversal of 2281307500 is 57031822.

It is not an unprimeable number, because it can be changed into a prime (2281307507) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 453762 + ... + 458761.

Almost surely, 2^2281307500 is an apocalyptic number.

2281307500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2281307500 is an abundant number, since it is smaller than the sum of its proper divisors (2707461208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2281307500 is an equidigital number, since it uses as much as digits as its factorization.

2281307500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912547 (or 912530 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2281307500 is about 47763.0348700750. The cubic root of 2281307500 is about 1316.4204171929.

The spelling of 2281307500 in words is "two billion, two hundred eighty-one million, three hundred seven thousand, five hundred".